网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)

功率方向继电器的转矩M=KUKIKcos(φK+α),所以继电器的动作带有方向性,它的动作范围()。

  • A、-(90°+α)>φK>(90°-α)
  • B、φK=90°-α
  • C、-(90°+α)<φK<(90°-α)
  • D、φK=90°+α

参考答案

更多 “功率方向继电器的转矩M=KUKIKcos(φK+α),所以继电器的动作带有方向性,它的动作范围()。A、-(90°+α)>φK>(90°-α)B、φK=90°-αC、-(90°+α)<φK<(90°-α)D、φK=90°+α” 相关考题
考题 有一过程如下:Sub Sub1(m As Integer,total As Long)Dim i As Integertotal=1For i=1 To mtotal=total*iNextEnd Sub调用它的事件过程如下:Private Sub Command1_Click()Dim tot As Long,a As Integera=Val(InputBox("请输入数据"))Call Sub1(a,tot)Print totEnd Sub则输入数据5,运行结果为【 】。

考题 阅读以下程序:Private Sub Form_click()Dim k, n, m As integern = 20m = 1k = 1Do While k <= nm=m+2k = k + 1LoopPrint mEnd Sub单击窗体程序的执行结果是【 】。

考题 有如下程序: Private Sub Command1_Click() Dim k As Integer,m As Integer Dim p As Integer k=4:m=1 p=PC(k,m):Print p; p=PC(k,m):Print p End Sub Private Function PC(a As Integer,b As Integer) Static m As Integer,i As Integer m=0:i=2 i=i + m + 1 m=i + a + b PC=m End Function 程序运行后,输出的结果为A.4 6B.6 6C.8 8D.10 12

考题 有如下程序: Private Sub Commandl_Click( ) Dim i As Integer For i=1 To 2 DS Next i End Sub Sub DS( ) Dim x As Integer,m As String Static y,n X=X + 1 y=y + 1 m=m "*”:n=n"#" Print x,y,m,n End Sub 程序运行后,输出的结果是A.1 1 * #B.1 1 * #C.1 1 * # 1 1 * # 1 2 * #D.1 1 * # 1 1 * ## 1 2 * ##

考题 下列程序的运行机结果是【 】。Private Sub Form_ Click()Dim k As Integern= 5m= 1k= 1Dom=m+2k= k+1Loop While k<=nPrint mEnd Sub

考题 下面程序的输出结果是( )。 #include"stdio.h" int sub(int m) { static a=4; a+=m; return a; } void main() { int i=2,j=1,k; k=sub(i); k=sub(j); printf("%d",k); }A.6B.7C.8D.9

考题 在窗体上画一个命令按钮,然后编写如下事件过程: Private Sub Commandl_Click() Dim m As Integer, n As Integer, p As Integer m=3: n=5: p=0 Call Y(m, n, p) Print Str(p) End Sub Sub Y(ByVal i As Integer, ByVal j As Integer, k As Integer) k=i+j End Sub 程序运行后,如果单击命令按钮,则在窗体上显示的内容是( )A.4B.6C.8D.10

考题 在窗体上画一个名称为Command1的命令按钮,然后编写如下事件过程: Private Sub Command1 Click() a = 2 For i=1 To 3 Call funl(i,A)Next i x = i + 2 Print x;a End Sub Private Sub fun1(n,m) m=m + n * 2 n = n + m End Sub 程序运行后,单击命令按钮,则窗体上显示的内容是A.1 5B.4 5C.8 4D.3 4

考题 有如下程序: Private Sub Command1_Click() Dim k As Integer,m As Integer Dim op As Integer k=4:m=1 p=PPC(k,m):Print op; p=PPC(k.m):Print op End Sub Private Function PPC(a As Integer,b As Integer) Static m As Integer,i As Integer m=0:i=2 i=i+m+1 m=i+a+b PPC=m End Function 程序运行后,输出的结果为A.4 6B.6 6C.8 8D.10 12

考题 在窗体上画一个命令按钮,然后编写如下事件过程: Private Sub Command1_Click() Dim in As Integer,n As Integer,p As Integer m=3:n=5:p=0 Call Y(m,n,p) Print Str(p) End Sub Sub Y(ByVal i As Integer,ByVal j As Integer,k As Integer) k=i+j End Sub 程序运行后,如果单击命令按钮,则在窗体上显示的内容是A.4B.6C.8D.10

考题 有如下的程序: Private Sub Command1_Click() Dim k As Integer,m As Integer Dim P As Integer k=4:m=1 P=Fun(k,m):Print P; P=Fun(k,m):Print P End Sub Private Function Fun(a As Integer,b As Integer) Static m As Integer,i As Integer in=5:i=2 i=i+m+1 m=i+a+b Fun=m\2 End Function 单击命令按钮后,输出结果为A.2 2B.4 4C.5 5D.6 6

考题 阅读以下程序:Prlvate Sub Form_Click()Dim k,n,m As Integern=10m=1k=1Do While k<=nm=m*2k=k+1LoopPrint mEnd Sub程序运行后,单击窗体,输出结果为【 】。

考题 在窗体上画一个名称为CoilTlilandl的命令按钮,然后编写如下事件过程: Private Sub command1 Click() Dim m As Integer, i As Integer, x(3)As Integer For i=0 To 3:x(i)=i:Next i For i = 1 To 2: Call sub1(x,i):Next i For i = 0 To 3: Print x(i);: Next i End Sub Private Sub sub1(a()As Integer,k As Integer) Dim i As Integer Do a(k)=a(k)+a(k+1) j = j + 1 Loop While j < 2 End Sub 程序运行后,单击命令按钮,则窗体上显示的内容是A.0 3 7 5B.0 1 2 3C.3 2 4 5D.0 5 8 3

考题 有过程如下:Sub fact (m As Integer, total As Long) Dim i As Integer total = 1 for i = 1 To m total = total*i Next iEnd Sub调用它的事件过程如下:Private Sub Command1_ Click () Dim tot As Long Dim a As Integer a = Val InputBox (“请输入数据”)) Call fact (a, tot) Print totEnd Sub则输入数据5,运行结果为 ______。A.100B.120C.200D.50

考题 在窗体上画一个命令按钮,然后编写如下事件过程: Sub BTC(old Copy( ) As Integer,new Copy( ) As Integer) Dim i AS Integer For i=LBound(oldCopy( ))To UBound(oldCopy( )) newCopy(i)=oldCopy(i) Next i End Sub Private Sub Command1 _ Click( ) Dimm(10) As Integer,n(10)As Integer For i=1 To 10 m(i) =i*i Next i Call BTC(m,n) Print n(5) End Sub 程序运行后,单击命令按钮输出结果为A.0B.2C.10D.25

考题 若有如下程序: float sub(int a,int b) { return(a*b); } main() {int i=1,j=2,k=3; printf("%4.0f\n",sub((int)sub(k+j,j),k+i)); } 则程序运行后的输出结果是( )。A.40B.32C.16D.编译出错

考题 当发生Form_Click事件时,下列程序的输出结果是( )。 Private m As Integer,n As Integer Private Sub Form_Click() Dim k As Integer,p As Integer k=6:p=60 Call sub1(k,p) Print m,n,m,k,p Call sub1(k,p) Print m,n,k,p End Sub Private Sub Form_Load() m=7 n=70 End Sub Public Sub sub1(x As Integer,ByVal y As Integer) Dim m As Integer n=n+5 m=n+x+y x=x+y y=x+y End SubA.7 75 66 60 7 80 126 60B.7 75 66 60 7 75 126 60C.7 75 66 60 7 80 66 60D.7 75 66 60 7 75 66 60

考题 下列程序运行后的输出结果是______。Private Sub f(k,s)s=1For j=1 To ks=s*jNextEnd SubPrivate Sub Command1_Click()Sum=0For i=1 To 3Call f(i,s)Sum=Sum+sNextPrint SumEnd Sub

考题 class Super {  public int i = 0;  public Super(String text) {  i = 1; }  }  public class Sub extends Super {  public Sub(String text) {  i = 2;  }   public static void main(String args[]) {  Sub sub = new Sub(“Hello”);  System.out.println(sub.i);  }  }  What is the result?()  A、 0B、 1C、 2D、 Compilation fails.

考题 单选题给定下列FORTRAN子程序如下:   SUBROUTINE SUB(K,A)   A=SQRT(K*K+1.0)   END   下列调用语句中正确的是()A  CALL SUB(N,N)B  CALL SUB(X,X)C  CALL SUB(N,X*X)D  CALL SUB(11,X)

考题 多选题下列扩展不确定度的表示中,表示形式是正确的是____。ApUsub95/sub=1%(vsubeff/sub=9)/pBpUsubr/sub=1%(k=2)/pCpusubCr/sub=0.5%/pDU=±0.5%(k=1)

考题 单选题class Super {  public int i = 0;  public Super(String text) {  i = 1; }  }  public class Sub extends Super {  public Sub(String text) {  i = 2;  }   public static void main(String args[]) {  Sub sub = new Sub(“Hello”);  System.out.println(sub.i);  }  }  What is the result?()A  0B  1C  2D  Compilation fails.

考题 单选题class super (   public int I = 0;   public super (string text) (   I = 1   )   )     public class sub extends super (   public sub (string text) (   i= 2   )   public static void main (straing args) (  sub sub = new sub (“Hello”);   system.out. PrintIn(sub.i);  )   )   What is the result?()A  Compilation will fail.B  Compilation will succeed and the program will print “0”C  Compilation will succeed and the program will print “1”D  Compilation will succeed and the program will print “2”

考题 多选题标准砝码的质量为m,测量得到的最佳估计值为100.02147g,合成标准不确定uc(ms) 为0.35mg,取包含因子k=2,以下表示的测量结果中 ( ) 是正确的。Apmsubs/sub=100.02147g;U=0.70mg,k=2/pBpmsubs/sub=(100.02147±0.00070)g;k=2/pCpmsubs/sub=100.02147g;usubc/sub(msubs/sub)=0.35mg,k=1/pDpmsubs/sub=100.02147g;usubc/sub(msubs/sub)=0.35mg/p

考题 单选题下列测量结果的表示中,错误的是()。A pIsubS/sub=10.0413A,Usubrel/sub=5×10sup-5/sup,k=2 /pB pIsubS/sub=10.0413(1±5×10sup-5/sup)A,k=2 /pC pIsubS/sub=(10.0413±5×10sup-5/sup)A,k=2 /pD pIsubS/sub=10.0413A,Usub95rel/sub=5×10sup-5/sup,Vsubeff/sub=9 /p

考题 多选题下列表示中____的表示形式是正确的。ApUsub95/sub= 1%,vsubeff/sub =9 /pBpUsubr/sub= 1%,k=2 /pCpusubC/sub=0. 5% /pDpusubC/sub=±0 5%.k=1 /p

考题 单选题标称值为10kΩ的标准电阻在23℃时的校准值Rs为9.9999315kΩ,合成标准不确定度为52mΩ。在被测量服从正态分布的情况下,当包含概率为95%时,测量结果可表示为( )。A pRsubs/sub=9.99993kΩ,Usub95/sub=0.10Ω,ksub95/sub=1.96/pB pRsubs/sub=9.999931kΩ,Usub95/sub=0.10Ω,ksub95/sub=1.96/pC pRsubs/sub=9.99993kΩ,Usub95/sub=102mΩ,ksub95/sub=1.96/pD pRsubs/sub=9.999931kΩ,Usub95/sub=102mΩ,ksub95/sub=1.96/p

考题 单选题给定子例行程序如下  SUBROUTINE SUB(K,A)  B=K+2  A=A+B END 下列调用语句中正确的是()A CALL SUB(N,N)B CALL SUB(X,X)C CALL SUB(N+2,X)D CALL SUB(N,X+3)